WO2008127899A3 - System and method for hydraulically managing fluid pressure downstream from a main valve - Google Patents

System and method for hydraulically managing fluid pressure downstream from a main valve Download PDF

Info

Publication number
WO2008127899A3
WO2008127899A3 PCT/US2008/059477 US2008059477W WO2008127899A3 WO 2008127899 A3 WO2008127899 A3 WO 2008127899A3 US 2008059477 W US2008059477 W US 2008059477W WO 2008127899 A3 WO2008127899 A3 WO 2008127899A3
Authority
WO
WIPO (PCT)
Prior art keywords
main valve
orifice
fluid pressure
pressure downstream
inlet
Prior art date
Application number
PCT/US2008/059477
Other languages
French (fr)
Other versions
WO2008127899A2 (en
Inventor
Robert Folk
Original Assignee
Cla-Val Co.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cla-Val Co. filed Critical Cla-Val Co.
Publication of WO2008127899A2 publication Critical patent/WO2008127899A2/en
Publication of WO2008127899A3 publication Critical patent/WO2008127899A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/163—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using membranes within the main valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0324—With control of flow by a condition or characteristic of a fluid
    • Y10T137/0379—By fluid pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0396—Involving pressure control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y10T137/7768—Pilot controls supply to pressure chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7797—Bias variable during operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7822—Reactor surface closes chamber
    • Y10T137/7828—Valve head on yoke
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86485—Line condition change responsive release of valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

A system and method for controlling fluid pressure downstream a main valve includes associating a variable orifice with the main valve such that the variable orifice opens as the main valve is opened and closes as the main valve is closed. A fluid stream taken from a fluid inlet of the main valve is passed to an inlet of the variable orifice. A fixed orifice is in fluid communication with an outlet of the variable orifice. A pressure differential between the inlet and outlet of a fixed orifice is detected by a control pilot device, which hydraulically opens or closes the main valve in response to the detected fixed orifice pressure differential between low pressure and high pressure set points.
PCT/US2008/059477 2007-04-13 2008-04-04 System and method for hydraulically managing fluid pressure downstream from a main valve WO2008127899A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US91160407P 2007-04-13 2007-04-13
US60/911,604 2007-04-13
US12/062,946 2008-04-04
US12/062,946 US20080251130A1 (en) 2007-04-13 2008-04-04 System and method for hydraulically managing fluid pressure downstream from a main valve

Publications (2)

Publication Number Publication Date
WO2008127899A2 WO2008127899A2 (en) 2008-10-23
WO2008127899A3 true WO2008127899A3 (en) 2009-12-30

Family

ID=39864617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/059477 WO2008127899A2 (en) 2007-04-13 2008-04-04 System and method for hydraulically managing fluid pressure downstream from a main valve

Country Status (2)

Country Link
US (2) US20080251130A1 (en)
WO (1) WO2008127899A2 (en)

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US9493931B2 (en) * 2008-12-30 2016-11-15 I20 Water Limited Mains water supply processing
US8381761B2 (en) * 2009-05-21 2013-02-26 Cla-Val Co. Pressure management control valve assembly
JP5698545B2 (en) * 2011-01-19 2015-04-08 株式会社桂精機製作所 Gas governor
NO336835B1 (en) * 2012-03-21 2015-11-16 Inflowcontrol As An apparatus and method for fluid flow control
US9320924B2 (en) 2013-03-15 2016-04-26 Honeywell International Inc. Self-locking webbing connectable device attachment plate
ITVI20130136A1 (en) * 2013-05-17 2014-11-18 Pietro Fiorentini Spa PRESSURE REGULATOR FOR A GAS AND PILOT METHOD FOR THIS PRESSURE REGULATOR
CN104482279B (en) * 2014-12-12 2016-10-05 乐山川天燃气输配设备有限公司 Under-voltage auto-closing pressure regulator after valve
US9760097B2 (en) * 2015-06-03 2017-09-12 Emerson Process Management Regulator Technologies, Inc. Adjustable deadband control system
US9989978B2 (en) * 2016-01-21 2018-06-05 Itt Manufacturing Enterprises Llc Natural gas pressure regulator having adjustable valve seat
JP2017187038A (en) * 2016-04-01 2017-10-12 フスコ オートモーティブ ホールディングス エル・エル・シーＨＵＳＣＯ Ａｕｔｏｍｏｔｉｖｅ Ｈｏｌｄｉｎｇｓ ＬＬＣ Pilot operated type piston oil cooling jet control valve
IT201600079425A1 (en) * 2016-07-28 2018-01-28 Pietro Fiorentini Spa CALIBRATION DEVICE FOR A GAS PRESSURE REGULATOR, IN PARTICULAR FOR A PILOT, AND A PRESSURE ADJUSTMENT SYSTEM FOR A GAS INCLUDING SUCH A CALIBRATION DEVICE
CN106090364B (en) * 2016-08-26 2021-08-10 上海康措流体控制有限公司 Electro-hydraulic valve, outlet pressure control system and inlet pressure control system
US10409298B2 (en) * 2017-04-27 2019-09-10 Marotta Controls, Inc. Electronically controlled regulator
US11803199B2 (en) 2017-10-26 2023-10-31 Aquestia Ltd. Dual set-point pressure regulating system
US11713828B2 (en) * 2019-04-30 2023-08-01 Dresser, Llc Pilot-operated pressure regulator
IT201900009771A1 (en) * 2019-06-21 2020-12-21 Pietro Fiorentini Spa PILOT DEVICE FOR THE PILOTING OF PRESSURE REGULATORS FOR GAS DISTRIBUTION SYSTEMS
CA3147636A1 (en) * 2019-07-19 2021-01-28 Emerson Automation Solutions Final Control US LP Rapid dome loading pilot valve bypass
US20220146052A1 (en) * 2020-11-06 2022-05-12 Vrg Controls Llc Monitor control valve with backflow prevention
US20220187857A1 (en) * 2020-12-10 2022-06-16 Griswold Industries Control system for regulating waterworks pressure

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US2235304A (en) * 1938-12-01 1941-03-18 Perfection Gear Company Valve
US4143850A (en) * 1977-05-25 1979-03-13 Robertshaw Controls Company Pilot operated valve positioner
US4553732A (en) * 1984-02-13 1985-11-19 Brundage Robert W Solenoid controlled flow valve
US6056008A (en) * 1997-09-22 2000-05-02 Fisher Controls International, Inc. Intelligent pressure regulator
US5967176A (en) * 1998-04-17 1999-10-19 Blann; Brian David Francis Automatic flow control valve with variable set-points

Also Published As

Publication number Publication date
US8276612B2 (en) 2012-10-02
WO2008127899A2 (en) 2008-10-23
US20120006418A1 (en) 2012-01-12
US20080251130A1 (en) 2008-10-16

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